Vacuum system



A. C. VAN KIRK.

VACUUM SYSTEM.

APPLJCATION FILED MAR. 25. I920.

- 1,405,363. Patented Jan. 31, 1922.

AaT nKirZi.

ARTHUR c. VAN xmx, or

MIDDLETON, OHIO, ASSIGNOR OF ONE-HALF EEO-HORACE M.

POTTER, OI CINCINNATI, OHIO.

VACUUM SYSTEM.

Specification of Letters Patent.

Patented Jan. 31, 1922.

Application filed March 25, 1920. Serial No. 388,776.

T oll vhom'it may concern):

Be it known that I, ARTHUR C. VAN KIRK,

a citizen of the United States, residing at Middleton, in the'county 01, Butler and State of Ohio, have invented a new and useful Vacuum System, of which the following is aspecification.

This invention relates to new and useful improvements in internal combustion engines, and it is the primary object of the invention to provide means adapted to be attached to the crank case of the engine, for automatically suckin the unburned gases, which ordinarily co lecl; in the crank easing, into the cylinders of the engine where the same mixes with the incoming gases, thus reducing the consumption of fuel to a minimum.

A further object of the invention is to provide a device of this character which may be readily attached through the filling opening of the crank casing, and one which will collect the unburned gases, thus eliminating the possibility of the lubricating oil in the crank case being thinned by gas leaking past the pistons.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the coinhination and arrangement of parts and in the details of construction hereinafter do scribed and claimed, it being undcrstrmd that changes in the. precise embodiment of the invention herein disclosed, may be IlliHlt within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawing Figure 1 illustrates a side elcvational view' 40 of an internal combustion engine showing the device as applied Figure 2 illustrates a sectional view taken on line 2-2 of Figure l.

Referring to the drawing in detail. the inference character I designates a relatively long pipe having a lower threaded extremity by means of which the same may be positioned in the usuah threaded filling opening of a crank casing.

provided with a relief valve Gof any suitable construction to permit the passage of air from the crank case, thus insuring against an accumulation of pressure within the crank A relati ely small pipe 7, provides compistons will not effect the oil within the The upper extremity of this pipe 5, is

munication between the pipe 5 and the manifold of the engine, the pipe having connection with the pipe 5 adjacent the upper end thereof, so that the direct suction of the crank casing, but on the other hand act to draw the unburned gases which usually collect in the crank, therefrom.

The opposite end of the pipe 7 has connectionwith the manifold of the engine indicated at 8, and this connection includes a rotating valve indicated at 9 adapted to be actuated by the rod 10, having one end thereof connected to the valve 9. as at 11, the opposite end of the rod 10 having connection with an operating lever 12 pivotally supported on the steering column 13, and dis posed at a point adjacent to the steering wheel 14.

In the operation of the device, the pistons operating in the cylinders of the engine reate a suction through the manifold 8, the unburned gases being drawn through the pipe 5 and pipe 7, where the same mix with the incoming gas passing through the manifold with the result that the gases are preheated. and the quantity of fluid con sumption reduced to a minimum.

If it is desired to throw the attachment out of operation, it is only necessary to actuate the lever 12 to close the pipe 7, thereby cutting off the supply of gases to the manifold.

Having thus described the invention, what is claimed as new is:-

In a device of the character des ribed, a pipe having a threaded extremity adapted to be positioned within the threaded opening of a crankfcasing, a relief valve positioned in the upper end of the pipe, a relatively small pipe in communication with the first mentioned pipe at a point in spaced relalion with the manifold of an engine, a conirol valve said relatively small pipe having communication with lhccontrol valve.andsaid control valve adapted to be operated to cause a suction to he created through the pipcs'nnd the crank casing.

In testimony that I claim .the foregoing as my own, I have hereto allixed my signature in the presence of two witnesses.

ARTHUR C. VAN KIRK. 

